Hydrothermal growth of zinc oxide nanorods under applied electric field conditions | |
| Author | Adithya Gannavaram |
| Call Number | AIT RSPR no.ISE-21-02 |
| Subject(s) | Hydrothermal electric power systems Zinc oxide--Electric properties Nanostructured materials |
| Note | A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Nanotechnology, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. ISE-21-02 |
| Abstract | ZnO nanorods were synthesized on an FTO glass substrate using a modified hydrothermal method under an applied electric field. Nanorods are grown under different applied voltages ranging from 0.1 V to 1 V, and the growth time for each voltage condition is varied from 30 minutes to 2 hours with distance between the cathode and the anode varied between 0.5 cm to 2 cm. The temperature during the growth process is maintained constant at 90 °C. The obtained ZnO nanorods are characterized with scanning electron microscopy (SEM) and UV-visible spectroscopy in order to investigate their morphological and optical properties. The SEM results revealed that the number density, length, diameter and alignment of the ZnO nanorods are altered when grown under different applied electric potential. For lower applied potential we observed longer nanorods but lower number density, which is found to be opposite for higher applied potential of 1V. Optical absorption of the ZnO nanorods with higher number density obtained at higher applied potential is also high in the UV region and showed very less absorption in the visible range. By comparing the morphologies of samples grown at different conditions, it is evident that the electric field has a clear effect on the density and length of nanorods depending on the conditions and can grow the ZnO nanorods faster than the conventional hydrothermal process carried out without any applied potential. |
| Year | 2021 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. ISE-21-02 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Systems Engineering (ISE) |
| Chairperson(s) | Bora, Tanujjal; |
| Examination Committee(s) | Hornyak, G. Louis;Ekbordin Winijkul; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Research report (M. Eng.) - Asian Institute of Technology, 2021 |